A list of recommended builds for Lucia: Crimson Abyss can be found here. Each tab represents one build — click the tabs below to view each one. See here for more information about Ultima Awakening and resonance slots.
This set allows the highest burst damage possible, which perfectly suits her Sword Wave kit.
There is a widespread misconception to "only use this set if you're a skilled player with good dodge management and debuff timing".
In practice you just need to know how to time/manage Matrix and enter Blade Will mode.
Dodge an attack to activate Matrix, use a 3-Ping Blue Signal Orb followed by another 3-Ping and an additional dodge to maximize Frederick's damage buff.
Damage is very low, but this set offers quick Core Passive activation which is useful for quickly clearing a few lower level Phantom Pain Cage: Advanced Zone bosses.
Not recommended to resonate unless your Crimson Abyss is at SSS+ Rank.
Useable War Zone set on Global if your Crimson Abyss is very highly invested in.
Lower score ceiling but higher skill floor
Weapon Resonance ◇ Lucia: Crimson Abyss
Recommended 6★ weapon resonances for Lucia: Crimson Abyss can be found here listed in order of priority.
1. Dead Line Timing
Gain 2 extra random signal orbs upon deployment, and 3 signal orbs of the same color every 45s (also gain signal orbs on standby).
2. Matrix Lightning
After EX Dodge (triggering Matrix), Movement Speed is greatly increased and all enemies' Extra DMG Reduction is decreased by 10% in Matrix.
3. Glorious Afterglow
Final ATK of the weapon increases by 30% for 8s upon a 3-ping. Duration resets upon a repeated trigger.
Priority
HIGH:
Dead Line Timing
Matrix Lightning
MEDIUM:
Glorious Afterglow
Notes
Minimum recommended amount: 2
Glorious Afterglow sometimes replaces Deadline Timing in Phantom Pain Cage.
Leave Glorious Afterglow for last.
Focus on Tank and Support/Amplifier resonances first before unlocking the third Attacker resonance.
Skills & Passives
Red Orb
Crimson Abyss - Flickering Strike
Automatically uses a 3-Ping version of this attack upon switch-in. Switch-in DOES NOT trigger this character's SS-Rank Passive. Leaps forward and attacks targets ahead, dealing 25% / 50% / 75% Physical DMG per hit based on the number of orbs pinged. The last hit deals 75% Physical DMG and knocks back the target if this is a 3-Ping. Gains Super Armor when using this skill.
Yellow Orb
Crimson Abyss - Dazzling Strike
Charges forward and drives through enemies, dealing 250%/500%/750% Physical DMG to enemies in the path based on the number of orbs pinged.
Blue Orb
Crimson Abyss - Lightbreak Strike
Boosts energy supply for 5 seconds and increases Movement Speed by 20% / 30% / 50% based on the number of orbs pinged. Deals 4% / 8% / 12% Physical DMG twice when attacking. When unleashing Sword Waves, Extra DMG will be enhanced into extra Sword Waves that deal 8%/16%/24% Physical DMG per hit.
Basic Attack
Crimson Abyss - Iaido Will
Basic Attack: Attacks the target in 5 sword styles. Each attack deals 80% / 100% / 120% / 270% / 280% Physical DMG. Can immediately perform the 3rd move of Basic Attack after dodging.
QTE: Performs consecutive Rising Slashes, dealing 600% Physical DMG in total and knocking the target into the air.
Class
Attacker
Extra DMG Bonus increases by 20%.
Awakening
Ultima Awaken
Gains 3 Signal Orbs when entering battle.
Core
Crimson Abyss - Blade Will
Core Passive: Any 3-Ping after a Blue 3-Ping causes you to fall back and enter Blade Will mode. Signal Orbs will be converted into Blade Will Orbs and you will gain 2 extra Blade Will Orbs. In Blade Will mode, Signal Orbs gained by Basic Attacks will be converted into Blade Will Orbs. When pinging a Blade Will Orb, unleashes Sword Waves that deal 340% Physical DMG and gains Super Armor while unleashing.
Leader
Leader - Abyssal Resonance
ATK and CRIT of all Attacker Constructs increases by 10% and 5%.
SS-Rank
Crimson Scabbard
Passive: When performing a Red 3-Ping, Physical DMG increases by 10% for 4 seconds.
SSS-Rank
Crimson Will
Passive: Extra DMG increases by 5%. Gains 2 Signal Orbs when the Blade Will mode ends.
SSS+ Rank
Abyssal Echo
Passive: Under the effects of pinging a Blue Orb, Physical DMG increases by 20%.
Character Ascension
This character's Ascension is implemented during the Sands of Wrath patch.
Gains 1 stack of Shinken upon any 3-Ping (maximum 2 stacks). When Lucia: Crimson Abyss has at least 1 stack of Shinken, hold Basic Attack to consume 1 stack of Shinken to cast Reverse Flash, dealing a total of 300% Physical DMG. Casting this skill when not in Blade Will mode grants 1 Signal Orb of a random color and rearranges all Signal Orbs into 3-Pings.
Level 9: The duration of Blue Orb effects is extended to 10s. Level 18: Base DMG of Reverse Flash increases by 100%. Crimson Scabbard added effect: The duration of Physical DMG increase effect is extended to 8s. Performing a Yellow 3-Ping can also trigger Crimson Scabbard. (Physical DMG increase effect of Crimson Scabbard triggered by Red and Yellow 3-Pings cannot stack.)
Hold Basic Attack while in Blade Will mode to consume 1 stack of Shinken and cast Reverse Flash, during which a red glow will briefly appear. Releasing Basic Attack when the glow appears consumes all remaining stacks of Shinken to perform Noutou-giri, dealing 600% Physical DMG. Lucia: Crimson Abyss is invincible during Noutou-giri.
Level 9: Entering Blade Will mode triggers all available QTEs and recovers 15 Energy. Level 18: Base DMG of Noutou-giri increases by 100%. Crimson Will added effect: Gains 2 additional Blue Orbs when exiting Blade Will mode. Gains 35 Energy when entering battle for the first time.
Hold Basic Attack after tapping on Signature Move in Blade Will mode to consume 2 stacks of Shinken and continuously consume Blade Will Orbs (consumes at least 1 Blade Will Orb) and cast Swordwave Burst during the sheathing animation of the Signature Move, dealing 350% Physical DMG. Each additional Blade Will Orb consumed increases the Base DMG of Swordwave Burst by 50%.
Level 9: Each additional Blade Will Orb consumed increases the Base DMG of Swordwave Burst by 100%. Level 18: Holding Basic Attack after tapping Signature Move during Blade Will mode now consumes Blade Will Orbs faster. Abyssal Echo added effect: When under the effects of Blue Orb, Physical DMG now increases by 30%.